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公开(公告)号：US3920998A
公开(公告)日：1975-11-18
申请号：US44920774
申请日：1974-03-05
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： NADA NAOHIRO , YAMASHITA TADAOKI
IPC: G01T1/11
CPC classification number: G01T1/11
Abstract: Phosphor composed of primarily of BeO and more than 0.5% % and up to 10% by mole of at least one activator selected from the group consisting of lithium, sodium and potassium is prepared by mixing a raw material high purity beryllium oxide with at least one kind of the activators of lithium, sodium and potassium and sintering the resulting mixture in a covered crucible at a temperature of 1,500*C to 2,100*C for 3 to 24 hours and is used for a thermoluminescent radiation dosimeter. The material can exactly measure the radiation dose up to a high level such as 1,000 to 2,000 roentogens.
Abstract translation: 通过将原料高纯度铍氧化物与至少一种氧化铝混合，制备主要由BeO组成的荧光体，大于0.5％％和至多10摩尔％的选自锂，钠和钾的至少一种活化剂 一种锂，钠和钾的活化剂，并在1500-2100℃的温度下将所得混合物在覆盖的坩埚中烧结3至24小时，并用于热发光辐射剂量计。 该材料可以精确测量高达1000至2,000个卤素的高水平的辐射剂量。
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公开(公告)号：US3926836A
公开(公告)日：1975-12-16
申请号：US13811871
申请日：1971-04-28
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： NADA NAOHIRO , YAMASHITA TADAOKI
Abstract: Phosphor composed of primarily of BeO and more than 0.5% and up to 10% by mole of at least one activator selected from the group consisting of lithium, sodium and potassium is prepared by mixing a raw material high purity beryllium oxide with at least one kind of the activators of lithium, sodium and potassium and sintering the resulting mixture in a covered crucible at a temperature of 1,500*C to 2,100*C for 3 to 24 hours and is used for a thermoluminescent radiation dosimeter. The material can exactly measure the radiation dose up to a high level such as 1,000 to 2,000 roentogens.
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Patent Agency Ranking
公开(公告)号：US3637518A
公开(公告)日：1972-01-25
申请号：US3637518D
申请日：1968-03-01
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： NADA NAOHIRO , YAMASHITA TADAOKI
CPC classification number: C09K11/0805 , C04B35/08 , C04B35/645 , C04B2235/3201 , C04B2235/3203 , C04B2235/3217 , C04B2235/3284 , C04B2235/3287 , C04B2235/3418 , C04B2235/36 , C04B2235/442 , C04B2235/443 , C04B2235/444 , C04B2235/448 , C04B2235/72
Abstract: A phosphor for a thermoluminescent radiation dosimeter, which is composed primarily of beryllium oxide doped with at least one activator selected from the group consisting of lithium, sodium, potassium, silicon, germanium, tin, zinc, cadmium, aluminum, thallium, cadmium and ytterbium, and which is especially adapted for measuring the dose absorbed by a tissue as its effective atomic number is approximately the same as that of the tissue, and has an excellent sensitivity and retention of radiation energy absorbed.
Abstract translation: 一种用于热发光辐射剂量计的荧光粉，其主要由掺杂有至少一种选自锂，钠，钾，硅，锗，锡，锌，镉，矾土，铊，镉和镱的活化剂的氧化铍组成 特别适用于测量由组织吸收的剂量，因为它的有效原子数大致与组织的原子数相同，并且具有优异的吸收辐射能量的灵敏度和保留性。
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公开(公告)号：US3590245A
公开(公告)日：1971-06-29
申请号：US3590245D
申请日：1969-08-18
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： OONISHI HAJIMU , YAMAMOTO OSAMU , YAMASHITA TADAOKI , KAWABATA HIDETSUGU , KITAMURA SABURO , HIGASHIDA YUTAKA
CPC classification number: G01T1/115
Abstract: A method of reading out the dosage of radiation to which a dosimeter was previously exposed, by blowing hot air against the exposed dosimeter to heat the same and reading out the dosage of radiation from the thermoluminescence emitted by said heated dosimeter, and an instrument for practicing the above-described method, said method and said instrument being capable of reading out the thermoluminescence of a dosimeter in a simple manner with high reliability and accuracy, irrespective of the shape of dosimeter.
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公开(公告)号：US3927328A
公开(公告)日：1975-12-16
申请号：US41757473
申请日：1973-11-20
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： KAWABATA HIDETSUGU , YAMASHITA TADAOKI
CPC classification number: C09K11/7713 , G01T1/11
Abstract: A thermoluminescence dosimeter which includes thermoluminescence phosphor comprising sodium sulfate as the host material and activator selected from the group consisting of dysprosium, holmium, thulium and terbium in an amount of 3 X 10 5 to 1 X 10 2 gram-atoms with respect to 1 mol of sodium sulfate. This thermoluminescence dosimeter is higher in sensitivity and more excellent in energy response characteristic than prior art thermoluminescence dosimeter and can be used to measure gamma radiation by exposing it to said radiation, heating it to about 300* C and measuring the luminescence emission.
Abstract translation: 一种热释光剂量计，其包括含有硫酸钠作为主体材料的热发光荧光体和选自3×10 -5至1×10 -2克/升的镝，钬，ium和铽的活化剂， 原子相对于1摩尔硫酸钠。 该热释光剂量计的灵敏度更高，能量响应特性优于现有技术的热释光剂量计，可用于通过将γ辐射暴露于所述辐射，将其加热至约300℃并测量发光发射来测量γ辐射。
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公开(公告)号：US3883748A
公开(公告)日：1975-05-13
申请号：US35072873
申请日：1973-04-13
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： NADA NAOHIRO , YAMASHITA TADAOKI
CPC classification number: C09K11/7713 , G01T1/11
Abstract: This has the accumulation effect of radiation energy and is mainly used as the element for thermoluminescent type radiation dosimeter. It has as the principal constituent a phosphor consisting of calcium sulfate as the principal constituent and other impurity elements such as dysprosium, thulium and the like. It is more sensitive by the order of 1-2 or more figures than the conventional ones and is excellent in the retention of absorbed radiation energy.
Abstract translation: 这具有放射能量的累积效应，主要用作热发光型辐射剂量计的元件。 作为主要成分，以硫酸钙为主要成分和其他杂质元素如镝，ium等作为主要成分。 它比常规的1-2个数量级更灵敏，并且在保持吸收的辐射能量方面是优异的。
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公开(公告)号：US3485766A
公开(公告)日：1969-12-23
申请号：US3485766D
申请日：1967-02-27
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： YAMASHITA TADAOKI , SAKAI KUNIO , NADA NAOHIRO , KITAMURA SABURO
CPC classification number: G01T1/11
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